When should I use a bitwise operator?

Question

I read the following Stack Overflow questions, and I understand the differences between bitwise and logical.

• Difference between & and && in

Answer 1

If you want to know more how it works check out this site:

http://www.bitwiseoperatorcalculator.com/

Coming from PHP, I have never used it before but just reading for fun this site gives simple explanations!